September weather forecastBethune Beach, FL
September
Weather in September
September, the first month of the autumn in Bethune Beach, is still a tropical month, with an average temperature fluctuating between 86.7°F (30.4°C) and 75.9°F (24.4°C).Temperature
In September, Bethune Beach notes an average high-temperature of a still tropical 86.7°F (30.4°C), hardly different from the preceding month. An average low-temperature of 75.9°F (24.4°C) marks the month of September.Heat index
Throughout September, the heat index is calculated to be a very hot 100.4°F (38°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
In Bethune Beach, the average relative humidity in September is 76%.Rainfall
In Bethune Beach, Florida, in September, it is raining for 14.8 days, with typically 1.34" (34mm) of accumulated precipitation. In Bethune Beach, during the entire year, the rain falls for 142.9 days and collects up to 12.99" (330mm) of precipitation.Daylight
In Bethune Beach, the average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:09 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 7 during September translates into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bethune Beach, FL
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (67.5°F).
- Average low temperature in September: 75.9°F
The month with the highest average low temperature is August (77.7°F).
The coldest month (with the lowest average low temperature) is January (54.7°F).
Average pressure in September
Bethune Beach, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Bethune Beach, FL
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Bethune Beach, FL
- Average humidity in September: 76%
The months with the highest relative humidity are June, July and August (77%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Bethune Beach, FL
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in September
Bethune Beach, FL
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is August (20.4 days).
The month with the least rainy days is February (7.3 days).
Average daylight in September /
Average sunshine in September
Bethune Beach, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in September
Bethune Beach, FL
- Average sunshine days in September: 10.6 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is August (7.5 days).
Average UV index in September
Bethune Beach, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Bethune Beach, FL
- Average cloud cover in September: 30
The months with the most cloud cover are January, February, November and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).
Average visibility in September
Bethune Beach, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
